Van Nes rotationplasty as a treatment method for Ewing's sarcoma in a 14-month-old

INTRODUCTIONIn recent years, the rotationplasty procedure has become popular amongst tumour surgeons as an alternative to endoprosthetic replacement or amputation. There are very few documented cases of this technique in young patients with malignancy.PRESENTATION OF CASEWe describe an extremely rare case of Ewing's sarcoma in a 14-month-old boy that involved the entire length of the left femur. At initial presentation, pulmonary metastatic spread had occurred and there was no neurovascular involvement. Complete response to neo-adjuvant chemotherapy was achieved prior to performing the definitive surgical procedure.DISCUSSIONThis case highlights the many reconstructive options and difficulties encountered in managing such extremely young patients with aggressive malignant disease. In this case, a complete femoral excision was necessary and various treatment options were explored. These included irradiation and re-implantation, endoprosthetic replacement and manufacturing a custom growing prosthesis. Taking future functional, psychological and social implications into consideration, we performed a total femoral excision and Van Nes rotationplasty of the tibia at our institute. Histological analysis of the tumour resection showed clear tumour margins and at 1 year clinical review, the patient demonstrates good functional outcome with no evidence of disease recurrence.CONCLUSIONVan Nes rotationplasty is a viable reconstructive option in young patients with sarcoma of the femur. We believe this to be the youngest reported case of rotationplasty in current literature.